2145254053131 has 24 divisors (see below), whose sum is σ = 3550203163104. Its totient is φ = 1222802438400.

The previous prime is 2145254053093. The next prime is 2145254053171. The reversal of 2145254053131 is 1313504525412.

2145254053131 is a `hidden beast` number, since 2 + 1 + 4 + 52 + 5 + 40 + 531 + 31 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-2145254053131 is a prime.

It is a super-2 number, since 2×2145254053131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2145254053171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 42433156 + ... + 42483681.

It is an arithmetic number, because the mean of its divisors is an integer number (147925131796).

Almost surely, 2^{2145254053131} is an apocalyptic number.

2145254053131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2145254053131 is a deficient number, since it is larger than the sum of its proper divisors (1404949109973).

2145254053131 is a wasteful number, since it uses less digits than its factorization.

2145254053131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 84917251 (or 84917248 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 2145254053131 its reverse (1313504525412), we get a palindrome (3458758578543).

The spelling of 2145254053131 in words is "two trillion, one hundred forty-five billion, two hundred fifty-four million, fifty-three thousand, one hundred thirty-one".